Payment Card Data // Detector
Find credit card numbers in your files
FileSentinel finds payment card numbers hiding in your files so cardholder data never leaves your machine by accident.
What it detects
What FileSentinel finds
FileSentinel detects 13-to-19-digit payment card numbers from the major networks and validates them with a Luhn check, which dramatically cuts false positives versus a plain digit match. Findings are tagged as PCI so they map cleanly to your cardholder-data obligations.
Where it hides
- Spreadsheets and CSV exports
- PDF invoices and statements
- Email exports and text files
- Screenshots and scans (via OCR)
// RESULTS — findings scored by confidence and severity
Why it matters
The risk of leaked payment cards
Storing unprotected card numbers puts you in scope for PCI DSS and exposes you to fraud and stiff penalties. Card data has a habit of landing in places it was never meant to live: email threads, order exports, and support tickets.
- Order and invoice exports from e-commerce or POS systems
- Support tickets and email threads where a customer pasted a card
- Spreadsheets used for manual billing or refunds
- Screenshots of checkout or payment screens
How FileSentinel handles it
Built-in detection, scored and local
FileSentinel reads inside your files on your own machine, flags payment cards with a confidence and severity score, and helps you remediate. Built-in detectors cover the common cases, and a custom rule builder lets you add plain-text or regex detectors for anything specific to your work.
Score
Every finding gets a confidence and severity score, so real payment cards rise above coincidental matches.
OCR
With OCR on, FileSentinel reads text inside images and scanned PDFs, catching payment cards in screenshots and scans.
Remediate
Redact values, mark false positives, or export a CSV, HTML, or PDF report, then share with confidence.
Private by design
Your files never leave your PC
Scanning, OCR, and remediation all happen on-device. FileSentinel makes no network connections to do its work, so the very data you are trying to protect never has to leave your machine to be checked. No server, no cloud, no upload step.
More FileSentinel scanners
Find and clean more sensitive data
Questions & answers
Find payment cards FAQ
How do I find credit card & payment card numbers in my files on Windows?
Install FileSentinel from the Microsoft Store, point it at a folder or drive, and start a scan. FileSentinel reads inside your files, flags credit card & payment card numbers, and scores each finding by confidence and severity so the real risks rise to the top.
Is scanning for credit card & payment card numbers private?
Yes. FileSentinel runs entirely on your device. Scanning, OCR, and remediation all happen locally with no uploads and no cloud, so the data you are trying to protect never has to leave to be checked.
Does FileSentinel validate card numbers or just match digits?
It validates. FileSentinel applies a Luhn checksum and network-prefix rules before flagging a payment card, so it surfaces real card numbers and skips arbitrary digit strings that happen to be the right length.
What file types does FileSentinel check for credit card & payment card numbers?
FileSentinel reads inside documents, spreadsheets, text, and PDFs, and with OCR enabled it reads text inside images and scanned PDFs too, so credit card & payment card numbers captured in a screenshot or scan is caught as well.
Get FileSentinel
Find Credit Card & Payment Card Numbers in Files
Install FileSentinel from the Microsoft Store and scan your files for sensitive data, all on your Windows PC with nothing uploaded.